Add a USB host port on a STM32F103 dev board

Forum|Forum|6 years ago
June 2, 2019
1 reply
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Hi,

I'm just starting out with embedded programming & electronics so please bear with me :)

I am starting a project based on the STM32F103 Nucleo board. The first thing I want to do is create a USB host port to connect a class-compliant MIDI device.

From this link I learned that means the USB class is likely OTG. What I don't understand yet is what I need in terms of hardware. I would like to use a USB type A port. Can I hook it up straight to the MCU pins on the dev board without additional ICs?

I ordered this book today which will surely help me with this, but it will take some days to arrive and I'd like to prepare already if I can.

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0x80Author

Associate

I think I've learned two important things this morning:

Yes, USB data lines are connected directly to the pins. I could for example use this simple module.
The 103x processor do not support USB host.

From what I've read here USB host / on-the-go class would require a 105/7 board at least. Luckily I didn't buy the hardware yet :)

That's a bit of a bummer because I was going base my project on an open-source project which uses the 103. I guess I will have to put in a bit more effort to port that code/hardware design.

But anyway, eventually my project requires both a USB host/OTG and a USB device port (also for MIDI) simultaneously. So I will first figure out that processor supports that...

M

meggan-g

Explorer II

Hi,
I am also having some trouble getting a USB breakout board connected to the Nucleo-F103RB, I only need the device in peripheral mode so not worried about otg, but I only get USB Device not recognised on my pc. I am still new to STM32 and this is the first time I am prototyping my own board for the chip, so I need to know how to communicate with the chip and instead of just buying the bluepill or similar as some have suggested for this issue.